	<div class="container">
      <form class="form-signin" action="" method="post">
        <h2 class="form-signin-heading">Login</h2>
        <input  name="usr" id="usr" type="text" class="input-block-level" placeholder="usuario" required="required"  >
        <input  name="pass" id="pass" type="password" class="input-block-level" placeholder="senha" required="required">
        <button class="btn btn-large btn-primary" type="submit">Logar</button>
      </form>
    </div> <!-- /container -->
